[class^="file-pre"],
[class*=" file-pre"] {
  font-family: "iconfont" !important;
  width: 24px;/* 可以去掉 width */
  height: 24px;/* 可以去掉 height */
  margin-right: 2px;/* 可以去掉 margin-right */
  font-size: 16px;
  font-style: normal;
  color: aqua;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

input[type="checkbox"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border: 2px solid #cccccc;
  border-radius: 50%;
  background-color: #ffffff;
}
input[type="checkbox"]:checked {
  background-color: rgb(99, 125, 255);
  border: none;
}
input[type="checkbox"]:checked::after {
  content: "\2713";
  font-size: 13px;
  color: #ffffff;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}